Sustainable Minerals Institute

Imam Purwadi

PhD Candidate
CMLR
+61 413 458 415
Imam Purwadi

Novel spectroscopies for sensing metals in plants from landscape-scale to individual plants

Despite the importance of hyperaccumulators for phytoremediation and phytomining, the number of identified hyperaccumulators is small compared to the number of plant species in generals. Further, hyperaccumulators are endangered due to forest fire, agriculture, mining, and so on. However, finding hyperaccumulators in the field is hindered by the fact that not many easily deployed techniques are available.  Therefore, the project aims to evaluate multi-modal spectroscopies for detecting metals in plants from using the x-ray fluorescence technique for scanning herbarium to the visible to near-infrared reflectance spectroscopy for scanning forest using a sensor mounted on drone and satellite. The project is focused on rare earth elements and nickel hyperaccumulators

Biography

In 2018, Imam graduated with cum laude distinction from the University of Twente, the Netherlands, with a Master of Science degree in Geo-information and Earth Observation with the specialisation applied earth science - geological remote sensing. In his master thesis, he quantified the concentration of rare earth elements in tailings and measured the light reflected by tailings in order to find a way to target rare earth element-bearing tailings from space. After completing his master's degree, he decided to pursue questions about plants that can be used environmentally friendly for removing rare earth element and aluminium in tailings, and started his Ph.D. in CMLR in 2019.

While being a student, Imam was appointed by the Dean of Faculty of Geo-Information Science and Earth Observation (ITC) at the University of Twente as a member of Programme Committee, acting as a quality assurance of the faculty and giving advice on academic and policy. In 2017, Imam won Geological Remote Sensing Group (GRSG) student award, and GRSG, a special interest group of the Geological Society of London (GeolSoc) and the Remote Sensing and Photogrammetry Society (RSPSoc), granted £1000 to support his studies. Also, he got the ITC Excellence Programme 2018 that is a three-month extension after graduation for publishing an academic article and doing research.

Supervisors

Associate Professor Peter Erskine & Dr Antony van der Ent

 

Publications

Book Chapters (3)
Journal Articles (10)
Thesis (1)

Book Chapters

Grosjean, Nicolas, Purwadi, Imam, Sirguey, Catherine, Chalot, Michel, Le Jean, Marie, van der Ent, Antony and Blaudez, Damien (2024). Rare earth elements in plants: transfer, transport, accumulation, impacts and perspectives. Advances in botanical research: phytomanagement as a nature-based solution for polluted soils. (pp. 19-61) edited by Michel Chalot. London, United Kingdom: Academic Press. doi: 10.1016/bs.abr.2023.10.005
van der Ent, Antony, Purwadi, Imam, Harris, Hugh H., Kopittke, Peter M., Przybyłowicz, Wojciech J. and Mesjasz-Przybyłowicz, Jolanta (2020). Methods for elucidating elemental distribution in hyperaccumulator plants. Agromining: farming for metals: extracting unconventional resources from plants. (pp. 197-214) edited by Antony van der Ent, Alan J. M. Baker, Guillaume Echevarria, Marie-Odile Simonnot and Jean Louis Morel. Cham, Switzerland: Springer International Publishing. doi: 10.1007/978-3-030-58904-2_10
Purwadi, Imam, Gei, Vidiro, Erskine, Peter D., Echevarria , Guillaume, Mesjasz-Przybyłowicz, Jolanta, Przybyłowicz, Wojciech J. and van der Ent, Antony (2020). Tools for the discovery of hyperaccumulator plant species in the field and in the herbarium. Agromining: farming for metals: extracting unconventional resources from plants. (pp. 183-195) edited by Antony van der Ent, Alan J. M. Baker, Guillaume Echevarria, Marie-Odile Simonnot and Jean Louis Morel. Cham, Switzerland: Springer International Publishing. doi: 10.1007/978-3-030-58904-2_9

Journal Articles

Goudard, Léo, Blaudez, Damien, Sirguey, Catherine, Purwadi, Imam, Invernon, Vanessa, Rouhan, Germinal and van der Ent, Antony (2024). Prospecting for rare earth element (hyper)accumulators in the Paris Herbarium using X-ray fluorescence spectroscopy reveals new distributional and taxon discoveries. Annals of Botany. doi: 10.1093/aob/mcae011
Purwadi, Imam, Erskine, Peter D., Casey, Lachlan W. and van der Ent, Antony (2023). Recognition of trace element hyperaccumulation based on empirical datasets derived from XRF scanning of herbarium specimens. Plant and Soil, 492 (1-2), 429-438. doi: 10.1007/s11104-023-06185-2
van der Ent, Antony, Casey, Lachlan W., Purwadi, Imam and Erskine, Peter D. (2023). Laboratory μ-X-ray fluorescence elemental mapping of herbarium specimens for hyperaccumulator studies. Plant and Soil, 493 (1-2), 663-671. doi: 10.1007/s11104-023-06201-5
Purwadi, Imam, Erskine, Peter D. and van der Ent, Antony (2023). Reflectance spectroscopy as a promising tool for ‘sensing’ metals in hyperaccumulator plants. Planta, 258 (2) 41, 1-13. doi: 10.1007/s00425-023-04167-3
van der Ent, Antony, Nkrumah, Philip Nti, Purwadi, Imam and Erskine, Peter D. (2023). Rare earth element (hyper)accumulation in some Proteaceae from Queensland, Australia. Plant and Soil, 485 (1-2), 247-257. doi: 10.1007/s11104-022-05805-7
Purwadi, Imam, Casey, Lachlan W., Ryan, Chris G., Erskine, Peter D. and van der Ent, Antony (2022). X-ray fluorescence spectroscopy (XRF) for metallome analysis of herbarium specimens. Plant Methods, 18 (1) 139, 1-17. doi: 10.1186/s13007-022-00958-z
van der Zee, Lucas, Remigio, Amelia Corzo, Casey, Lachlan W., Purwadi, Imam, Yamjabok, Jitpanu, van der Ent, Antony, Kootstra, Gert and Aarts, Mark G. M. (2021). Quantification of spatial metal accumulation patterns in Noccaea caerulescens by X-ray fluorescence image processing for genetic studies. Plant Methods, 17 (1) 86, 1-16. doi: 10.1186/s13007-021-00784-9
Purwadi, Imam , Nti Nkrumah, Philip , Paul, Adrian L. D. and van der Ent, Antony (2021). Uptake of yttrium, lanthanum and neodymium in Melastoma malabathricum and Dicranopteris linearis from Malaysia. Chemoecology, 31 (5), 335-342. doi: 10.1007/s00049-021-00348-2
Purwadi, I., van der Werff, H. M. A. and Lievens, C. (2020). Targeting rare earth element bearing mine tailings on Bangka Island, Indonesia, with Sentinel-2 MSI. International Journal of Applied Earth Observation and Geoinformation, 88 102055, 102055. doi: 10.1016/j.jag.2020.102055
Purwadi, Imam, van der Werff, Harald and Lievens, Caroline (2019). Reflectance spectroscopy and geochemical analysis of rare earth element-bearing tailings: a case study of two abandoned tin mine sites in Bangka Island, Indonesia. International Journal of Applied Earth Observation and Geoinformation, 74, 239-247. doi: 10.1016/j.jag.2018.09.006

Thesis

Purwadi, Imam (2023). Novel Spectroscopies for metallome analysis of trace element Hyperaccumulator plants. PhD Thesis, Centre for Mined Land Rehabilitation, The University of Queensland. doi: 10.14264/eaca1d2